The main thing that this question is asking is which sentence does not have a formal tone. A formal tone for research writing usually means using more professional (instead of casual, everyday) language and free of your own opinions.
This means choice D is inappropriate because it is opinionated. Using "I think" is not formal tone.
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Answer: D) I think one of the most frustrating things about owning a cat is that they don't obey many commands.
Answer: Technology
Explanation: There are so many ways and techniques technology has created for everyone. Especially those with disabilities and physical injuries. Lots of training and adapting. Robotic legs, caste, etc. A lot of things can help
I don't need a dictionary. There are TWO acceptable options:
beefs and beeves
In English, we typically refer to the plural of beef like this ....
I tasted two types of beef, but I didn't like either one.
I was really surprised that they could do this stuff.
The wind caresses each leaf as she blows by
Wisping through each blade of grass and grain
Helping every beautiful baby bird take flight
Though Her beauty could not compare
An underlying rage was unforeseen
thrashing trees and bees
leaving families astray
To wonder,
wait.